slicer: cura (please take cura, Don't take slic3r!) Nozzle: 0.4mm support: only for cover Optimize Wall Printing Order: Yes Fill Gabs Between Walls: No Use adaptive layers: Yes Layer: 0.10 to 0.20mm with adaptiv layer material: PLA Infill Travel Optimization: Yes Print Thin Walls: Yes (important for stator.stl) Not to fast! Print the parts with about 30mm/s, to get a good layer connection. (It depends on the quality of your printer) not to hot, because of dropping nozzle PLA 205*C infill: maximal15% walls before innfill: YES Ouline walls before inlines: YES